6905849290 has 16 divisors (see below), whose sum is σ = 12443811912. Its totient is φ = 2759387904.

The previous prime is 6905849243. The next prime is 6905849333. The reversal of 6905849290 is 929485096.

It can be written as a sum of positive squares in 4 ways, for example, as 3998159361 + 2907689929 = 63231^2 + 53923^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359139 + ... + 377878.

Almost surely, 2^6905849290 is an apocalyptic number.

6905849290 is a deficient number, since it is larger than the sum of its proper divisors (5537962622).

6905849290 is a wasteful number, since it uses less digits than its factorization.

6905849290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737961.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 6905849290 is about 83101.4397588875. The cubic root of 6905849290 is about 1904.3160690142.

The spelling of 6905849290 in words is "six billion, nine hundred five million, eight hundred forty-nine thousand, two hundred ninety".